Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NW4Y callsign genealogy
Currently held by ALONSO, DANILO
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by NW4Y's current licensee, walking backwards.
- ALONSO, DANILOFLgranted 1999-02-25cancelled 2000-12-09
Successor callsigns
Callsigns held now by people who previously held NW4Y.
No current licensee on record previously held this callsign.